NEW YORK — Sasha Sagan, daughter of the late Carl Sagan, is working on a book her publisher is calling “part memoir, part guidebook and part social history.” G.P. Putnam’s Sons announced Thursday that ...

Born Sue Zinn, she later adopted the name Sagan in tribute to astronomer Carl Sagan. After retiring ... Sagan shared a particularly close bond with her daughter Shannon, who lovingly cared ...